diff --git a/CHANGELOG.md b/CHANGELOG.md
index be0fd94bf4a09279297742315e5041291dc2e414..1c0f82a2b33429f84754b3ca6de52ac70c8fe04e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ The format is based on [keep a changelog](http://keepachangelog.com) and this pr
 - Gracefully close Lua matches when call queue fills up.
 - Better handling for Lua runtime wallet update operation errors.
 - Fix handling of leaderboard record writes that do not need to update the database.
+- Fix parsing edge case in TypeScript/JavaScript runtime storage delete operations.
 
 ## [3.9.0] - 2021-10-29
 ### Added
diff --git a/server/runtime_javascript_nakama.go b/server/runtime_javascript_nakama.go
index ab64df923cb6ded24f9d244a60b5283e0dd552e5..b7bce33d060e0468bc195b7ca977785599262d41 100644
--- a/server/runtime_javascript_nakama.go
+++ b/server/runtime_javascript_nakama.go
@@ -3623,8 +3623,8 @@ func (n *runtimeJavascriptNakamaModule) storageDelete(r *goja.Runtime) func(goja
 				objectID.Key = key
 			}
 
-			if userID, ok := dataMap["userId"]; ok {
-				userIDStr, ok := userID.(string)
+			if uid, ok := dataMap["userId"]; ok {
+				userIDStr, ok := uid.(string)
 				if !ok {
 					panic(r.NewTypeError("expects 'userId' value to be a string"))
 				}